Check-rower tension device



Nb Model.)

- E. W. RYDER 8v 0. 'A. ROSEVELT..

'UHEGK ROWER TENSION DEVIGE.

Patented Aug. 24, 1886.

Witnesses. a Izwmiorr Mm. W

N. PETERS, PhuloLilhogrzlpher. Wzuhingon, DC

UNITED STATES ENOGH WV. RYDER AND CHARLES A.

PATENT OFFICE.

ROSEVELT, OF KEELEB, MICHIGAN.

CHECK-ROWER TENSION DEVICE.

#:PECIFICATION forming part of Letters Patent No. 347,832, dated August24, 1886.

Application filed May 27, 1886. Serial No. 208,378. (No model.)

To all whom it may concern:

Be it known that we, ENocH W. RYDER and OHARLEs A. RosEvELT, citizens ofthe United States, residing at Keeler, county of Van Buren, State ofMichigan, have invented a new and useful Check-Bower Tension Device, ofwhich the following is a specification.

This invention relates to tension devices having a weighted leverfor'producing a given tension on the guide-line.

It has for its object a certain combination of parts designed tostrengthen the device and facilitate its operation.

In the drawings for ming a part of this specification, Figure l is aside elevation; Fig. 2, a plan view; Fig. 3, end view of parts in Fig.1, looking from a point at the right; Fig. 4, a cross section on line 22 in Fig. l, and Fig. 5 is a plan illustrating the use of the device.

Referring to the letters marked on the drawings, O is a sliding carriagecarrying a weighted lever, a, t'ulcrumed at the top of the endstandard,f, said lever a being. passed through the Vertical slot of thestandard 0 of said carriage. The upper end of this slot limits theupward play of the lever a. U is a movable weight on the lever a. \Viththe shoulder e of lever a, above its fulcrum, is pivotally connected ahook-bar, d, with the free end of which the guide-line T. Fig. 5, isconnected. Guides to the sliding carriage are shown at D secured to thebed-support B. To the frame 1, extending upward from the bed B of thedevice, is fulerumed a l0ck-lever, r. The lower end of this lever isjointedly-connected with the end of the sliding carriage O by ball a.The pin 8 passes through a hole in the lock-bar r, and through one ofthe series of holes t i, to lock the lever at desired point. This leverin Fig. 2 is in section on line 1 1 in Fig. 1.

In the use of check-rowers, anchors I are commonly employed on each sideof the field, Fig. 5, and also linecarriages a, the wheel P of whichrolls on the back edge of the anchor I. With these line carriages andanchors our tension is used by being connected with the line-carriageand with the guide-line, as shown.

The object of the tension device is to always produce an equal strain onthe guide-line T, thereby causing the hills R R to be in line with eachother at right and oblique angles to the direction in which thecheck-rower is being driven, as well as in line in said direction-thatis, in true and substantially accurate line. As the knots 0, which areof equal distance apart on the guide-line T, trip the check-rower,causing it to plant a hill, It, beneath each knot, it is necessary, inorder to have the hills accurate, as above stated, that the same tensionbe given the guide-line for each row.

Of course it will be understood that the check-rower (not here shown) isused in the ordinary manner, and with the ordinary guideline bearingtrip knots 0that is, the checle, rower at the right in Fig. 5, with theguideline thrown over the trip, would be driven across the field to theleft, and the left end of the guide-line would be swung downward, as inFig. 5, laterally ina field, so that the tension-carriage would be atthe lower end of the anchor when the transit across the field wascompleted.

In the operation of the tension device the weight is set and securedonthe-lever a at a point in accordance with the desired tension on theguide-line T. Then the leverr is swung to the right until the lever aswings up and contacts with the upper end of the slot in standard 0, inwhich position the lever r is looked, as before stated, by pin 8 orother suitable means.

Of course, in lieu of a weight, a spring can be employed in connectionwith the t-ension-.

lever, in a manner that said lever will play against a yieldingresistance.

end of the rows, all substantially as set forth.

In testimony of the foregoing we have hereunto subscribed our names inpresence of two witnesses. V

ENOCH \V. RYDER. CHARLES A. ROSEVELT. \Vitnesses: r

CHAS. -D. SWEETLANI), E. G. SOUTHARD.

